US PATENT SUBCLASS 152 / 520
.~.~.~ Utilizing additional noninflatable supports which become load supporting in emergency

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
450  DF  .~ Pneumatic tire or inner tube {23}
516  DF  .~.~ With means enabling restricted operation in damaged or deflated condition {5}
520.~.~.~ Utilizing additional noninflatable supports which become load supporting in emergency

DEFINITION

Classification: 152/520

Utilizing additional noninflatable supports which become load supporting in emergency:

(under subclass 516) Subject matter wherein the support means which permit the tire assembly to continue operation when its inflation pressure drops is an integral part of the tire either located within the tire cavity or external to the tire.

(1) Note. Such means generally protrude from the rim portion of the tire to support the tire in the event of an emergency.